This week, the Piaggio group, which owns several brands including Aprilia & Gilera released its 2009-2012 strategic plan, where it told investors that the company intends to develop a range of sports bikes with mid-sized engines for the American market.

What that means exactly is fairly vague, as no other details beyond this simple statment were given, “The Group intends to work on the growth of different brand names, also through the development of sport bikes with mid-sized engines.”

Many have speculated that this means that Aprilia will be releasing a 600cc sport bike to go along side its , and that seems like a fairly logical conclusion.

And then, we remembered this rumor from last year, Gilera 600cc Supersport 2009 Fact or Fiction?